A hydraulic turnover safety unloading device for dead livestock and poultry harmless treatment

Abstract

The present application relates to a kind of dead livestock and poultry harmless treatment with hydraulic tilting safety unloading device, including tilting and double-acting hydraulic cylinder, the bottom of tilting is fixed with hinged axle, and hinged axle is fixed shaft rotationally connected on axle bracket, axle bracket is fixed on base, double-acting hydraulic cylinder is arranged in base and its piston rod end is hinged with the bottom surface of tilting, further comprising: setting on the anti-falling mechanism of base, the effect of this anti-falling mechanism is that, when tilting appears sudden falling situation, hinged axle is implemented locking operation, to prevent tilting from falling;Positioning baffle and two anchor columns are set on tilting.The positioning baffle is used to stop and position vehicle wheel and implement blocking;The anchor column is fixed on the two sides of the end of tilting away from hinged axle, and anchor column is equipped with steel cable, after the stop of transport vehicle, by steel cable and transport vehicle front end trailer hook is connected.This kind of dead livestock and poultry harmless treatment with hydraulic tilting safety unloading device, greatly improves the reliability of unloading safety.

Description

Technical Field

[0001] This invention relates to the field of harmless treatment equipment, specifically a hydraulic tipping plate safety unloading device for the harmless treatment of diseased and dead livestock and poultry. Background Technology

[0002] The harmless disposal of diseased and dead livestock and poultry is a key link in preventing the spread of animal diseases and ensuring food safety and the ecological environment.

[0003] Currently, the usual practice is for transport vehicles carrying diseased or dead livestock and poultry to drive into a hydraulic tipping platform. Then, a double-acting hydraulic cylinder is activated to tilt the vehicle, causing the dead livestock and poultry to slide down into a sealed storage silo below, preventing contact with the external environment. However, due to the weight of the transport vehicles, they are prone to slipping while tilted, leading to accidents. Furthermore, under high pressure, hydraulic lines may rupture or the cylinders may leak, causing the tipping platform to suddenly fall, injuring vehicles or personnel below and resulting in serious safety accidents. Therefore, we propose a hydraulic tipping platform safety unloading device for the harmless treatment of diseased or dead livestock and poultry. Summary of the Invention

[0004] The purpose of this invention is to provide a hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry, so as to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: a hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry, including a tipping plate and a double-acting hydraulic cylinder, a hinge shaft fixed to the bottom of the tipping plate, and the hinge shaft being rotatably connected to a shaft frame, the shaft frame being fixed to a base, and the double-acting hydraulic cylinder being disposed in the base and its piston rod end being hinged to the bottom surface of the tipping plate, and further comprising: The anti-fall mechanism installed on the base is designed to lock the hinge shaft in case of a sudden fall of the flap to prevent the flap from falling. A positioning baffle and two anchor posts are installed on the flap. The positioning baffle is used to stop and position the wheels of the transport vehicle and to block them; the anchor posts are fixed on both sides of the flap away from the hinge axis, and the anchor posts are equipped with steel cables, which are connected to the trailer hook at the front of the transport vehicle after the transport vehicle has come to a complete stop.

[0005] Preferably, the upper surface of the flip plate has a groove, and a screw is rotatably connected to the bottom of the groove. The screw is parallel to the hinge shaft. One end of the screw is connected to an adjusting motor fixed inside the groove. A bearing plate is provided inside the groove, and a positioning baffle is fixed on the bearing plate. A screw sleeve is fixed to the bottom of the bearing plate. The screw sleeve is fitted and threaded onto the screw. Pressure sensors are provided on the bottom of the flip plate at both ends of the screw. The adjusting motor and the two pressure sensors are electrically connected to the controller.

[0006] Preferably, a guide rail is fixed to the bottom surface of the groove, and the guide rail and the screw are arranged parallel to each other. A slider adapted to the guide rail is fixed to the bottom surface of the bearing plate, and the slider is slidably connected to the guide rail.

[0007] Preferably, the unloading tail of the flap is equipped with a cleaning mechanism, and during the flap reset process after unloading, the anti-fall mechanism drives the cleaning mechanism to clean the surface of the flap.

[0008] Preferably, the anti-fall mechanism includes a pump cylinder one hinged to the base and a pump cylinder two fixed to the base. A piston plate one is slidably connected inside the pump cylinder one, and a connecting rod is fixedly connected to the piston plate one. The end of the connecting rod away from the piston plate one is hinged to the bottom surface of the flap. The lower end of the pump cylinder one is connected to the pump cylinder two through a conduit one. A piston plate two is slidably connected inside the pump cylinder two. The piston plate two is connected to the inner wall of the pump cylinder two through a spring four. The piston plate two is fixedly connected to a locking block through a push-pull rod. The locking block is located outside the pump cylinder two. A gear plate is coaxially fixedly connected to the end of the hinge shaft, and the locking block and the gear plate are correspondingly engaged.

[0009] Preferably, the anti-fall mechanism further includes a liquid storage tank fixed on the base. The lower side wall of the pump cylinder one is fixed and connected to the flow limiting valve cylinder. The end of the flow limiting valve cylinder away from the pump cylinder one has an opening. The opening is connected to one end of the three-way connector. The other two ends of the three-way connector are respectively connected to one-way valve one and one-way valve two. One-way valve one is connected to conduit two. The conduction direction of one-way valve one is pointing towards conduit two. Conduit two is connected to the self-cleaning mechanism and its outlet end is connected to the liquid storage tank. One-way valve two is connected to the liquid storage tank through conduit three. The conduction direction of one-way valve two is pointing towards the three-way connector.

[0010] Preferably, a valve plate is hinged to the inner wall of the flow-limiting valve cylinder, and the valve plate blocks two-thirds of the flow cross-section of the opening. The valve plate is connected to the inner wall of the flow-limiting valve cylinder by a spring.

[0011] Preferably, the cleaning mechanism includes reciprocating lead screws symmetrically arranged on both sides of the unloading position of the flip plate, and the reciprocating lead screws are arranged perpendicularly to the hinge shaft. A matching sliding sleeve is sleeved and slidably connected on the reciprocating lead screw, and a movable seat is fixed on the sliding sleeve. The two ends of the shaft are respectively hinged in the two movable seats, and gears are coaxially fixedly connected to both ends of the shaft. A shovel plate for cleaning the surface of the flip plate is fixed on the shaft.

[0012] Preferably, pump wheels corresponding to reciprocating screws are fixed on both sides of the flap unloading position, and the impeller shaft of the pump wheel is connected to the corresponding reciprocating screw drive. The second guide tube is fixed and connected to the side wall of the pump wheel.

[0013] Preferably, the movable seat has a sliding groove, and a rack is slidably connected in the sliding groove. The rack meshes with the upper end of the corresponding gear. The end of the rack is connected to one end of the sliding groove through a second spring. A sliding cylinder is fixed on the upper surface of the movable seat, and a locking rod is slidably connected inside the sliding cylinder. The upper end of the locking rod is connected to the top of the sliding cylinder through a third spring. An insertion hole is provided on the side wall of the sliding cylinder. A wedge block is fixed on the upper end of the locking rod, and the bottom of the wedge block is a wedge-shaped surface facing the insertion hole. A slide rail is provided on the upper surface of the movable seat that communicates with the sliding groove. The lower end of the locking rod is inserted into and slidably connected in the slide rail. The lower end of the locking rod is a wedge-shaped surface facing the transport vehicle side. A buckle groove adapted to the lower end of the locking rod is provided on the rack.

[0014] Preferably, the two ends of the compound lead screw are respectively provided with a stop bar and a ejector pin, and both the stop bar and the ejector pin are fixed on the side wall of the flap. The stop bar is in abutting contact with the end of the corresponding rack, and the ejector pin passes through the corresponding insertion hole and is in abutting contact with the wedge surface of the wedge block.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Multiple safety features prevent vehicles from slipping and tipping over. Vehicle anti-slip: By setting up positioning baffles to mechanically block the rear wheels of the transport vehicle, and using steel cables to connect the trailer hook at the front of the vehicle to form double anchoring, the entire vehicle can be effectively prevented from slipping during the overturning process, ensuring the absolute safety of the vehicle and personnel.

[0016] Anti-fall mechanism for the flap: The design includes a pump cylinder, piston, locking block and gear plate. When the hydraulic line bursts or the cylinder leaks, causing the flap to fall suddenly, the oil pressure in the pump cylinder will rise sharply, driving the locking block to quickly engage with the gear plate, locking the hinge shaft and preventing the flap from falling further, thus avoiding injury to personnel or equipment below.

[0017] 2. Load balancing control to prevent equipment overload. By installing pressure sensors at both ends of the bottom of the flap, and combining them with a controller and a regulating motor, the system can automatically identify the load difference between the two sides of the flap. When the pressure difference between the two sides exceeds the safe range, the controller will drive the screw to rotate, causing the bearing plate (and positioning baffle) to move laterally, thereby adjusting the vehicle position and making the vehicle load evenly distributed on the flap. This can effectively prevent the hydraulic cylinder on one side from malfunctioning due to overload, and further improve the stability and safety of the unloading operation.

[0018] 3. Automatic cleaning reduces pollution and labor costs. During the flip-plate reset process, the oil discharged from the pump cylinder in the anti-fall mechanism drives the pump wheel, which in turn drives the reciprocating screw and shovel to automatically clean the flip-plate surface. This enables unidirectional scraping by the shovel, preventing the return of dirt and ensuring cleaning effectiveness. This not only effectively prevents the spread of pollution from the residue of dead livestock and poultry, but also greatly reduces the labor intensity and epidemic prevention risks for personnel entering dangerous areas for cleaning.

[0019] 4. Control the lifting speed of the flap to ensure smooth operation. A valve plate with a spring is installed in the hydraulic system. When the flap rises, the valve plate opens the channel due to the impact of the oil, ensuring smooth lifting. When the flap falls, it restricts two-thirds of the flow cross section. This flow-limiting design allows the flap to descend smoothly and slowly during normal reset, avoiding excessive impact due to gravity. This protects the equipment and improves operational safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall assembly structure of the flap in the horizontal state of the present invention; Figure 2 This is a schematic diagram of the overall assembly structure of the tilting flap of the present invention; Figure 3 for Figure 1 Schematic diagram of the AA section structure; Figure 4 This is a top view of the flap structure in this invention; Figure 5 for Figure 1 Enlarged structural diagram at point B in the diagram; Figure 6 for Figure 1 Enlarged structural diagram at point C; Figure 7 This is a schematic diagram of the contact structure between the ejector pin and the wedge block in this invention; Figure 8 for Figure 7 A magnified structural diagram at point D in the diagram.

[0021] In the diagram: 1. Flip plate; 2. Double-acting hydraulic cylinder; 3. Groove; 4. Bearing plate; 5. Screw sleeve; 6. Screw; 7. Adjusting motor; 8. Slider; 9. Guide rail; 10. Positioning baffle; 11. Anchor post; 12. Steel cable; 13. Pump barrel one; 14. Piston plate one; 15. Connecting rod; 16. Liquid storage tank; 17. Pump barrel two; 18. Piston plate two; 19. Push-pull rod; 20. Clamping block; 21. Guide tube one; 22. Hinge shaft; 23. Gear plate; 24. Shaft bracket; 25. Cleaning mechanism; 26. Pressure sensor; 27. Guide tube two; 28. 1. Flow limiting valve cylinder; 29. ​​Spring 1; 30. Valve plate; 31. Reciprocating screw; 32. Pump wheel; 33. Sliding sleeve; 34. Moving seat; 35. Stop bar; 36. Pin; 37. Slide cylinder; 38. Shovel plate; 39. Shaft; 40. Gear; 41. Rack; 42. Slide groove; 43. Spring 2; 44. Snap groove; 45. Insertion hole; 46. Locking rod; 47. Wedge block; 48. Spring 3; 49. Slide rail; 50. Through port; 51. T-joint; 52. Check valve 1; 53. Check valve 2; 54. Conduit 3; 55. Spring 4. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 8 This invention provides a technical solution: a hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry, comprising a tipping plate 1 and a double-acting hydraulic cylinder 2. A hinge shaft 22 is fixed to the bottom of the tipping plate 1, and the hinge shaft 22 is rotatably connected to a shaft frame 24. The shaft frame 24 is fixed to a base, and the double-acting hydraulic cylinder 2 is disposed within the base with its piston rod end hinged to the bottom surface of the tipping plate 1. The device also includes: The anti-fall mechanism installed on the base is designed to lock the hinge 22 when the flap 1 suddenly falls, so as to prevent the flap 1 from falling. A positioning baffle 10 and two anchor posts 11 are installed on the flap 1. The positioning baffle is used to stop and position the wheels of the transport vehicle and to block them; the anchor posts 11 are fixed on both sides of the flap 1 away from the hinge shaft 22, and the anchor posts 11 are equipped with steel cables 12, which are connected to the trailer hook at the front of the transport vehicle after the transport vehicle has come to a stop.

[0024] In this embodiment, a groove 3 is provided on the upper surface of the flip plate 1, and a screw 6 is rotatably connected to the bottom surface of the groove 3. The screw 6 is arranged parallel to the hinge shaft 22. One end of the screw 6 is connected to the adjusting motor 7 fixed inside the groove 3. A bearing plate 4 is provided inside the groove 3, and a positioning baffle 10 is fixed on the bearing plate 4. A screw sleeve 5 is fixed on the bottom surface of the bearing plate 4. The screw sleeve 5 is sleeved and threadedly connected to the screw 6. Pressure sensors 26 are provided on the bottom surface of the flip plate 1 at both ends of the screw 6. The adjusting motor 7 and the two pressure sensors 26 are electrically connected to the controller. A guide rail 9 is fixed on the bottom surface of the groove 3, and the guide rail 9 is arranged parallel to the screw 6. A slider 8 that matches the guide rail 9 is fixed on the bottom surface of the bearing plate 4, and the slider 8 is slidably connected to the guide rail 9.

[0025] In this embodiment, a cleaning mechanism 25 is provided at the unloading tail of the flap 1, and during the reset process of the flap 1 after unloading, the anti-fall mechanism drives the cleaning mechanism 25 to clean the surface of the flap 1.

[0026] In this embodiment, the anti-fall mechanism includes a pump cylinder 13 hinged to the base and a pump cylinder 27 fixed to the base. A piston plate 14 is slidably connected inside the pump cylinder 13, and a connecting rod 15 is fixedly connected to the piston plate 14. The end of the connecting rod 15 away from the piston plate 14 is hinged to the bottom surface of the flap 1. The lower end of the pump cylinder 13 is connected to the pump cylinder 27 through a conduit 21. A piston plate 28 is slidably connected inside the pump cylinder 27. The piston plate 28 is connected to the inner wall of the pump cylinder 27 through a spring 4 55. The piston plate 28 is fixedly connected to a locking block 20 through a push-pull rod 19. The locking block 20 is located outside the pump cylinder 27. The end of the hinge shaft 22 is coaxially fixedly connected to a gear disk 23, and the locking block 20 and the gear disk 23 are correspondingly engaged.

[0027] In this embodiment, the fall protection mechanism also includes a liquid storage tank 16 fixed on the base. The lower end side wall of the pump cylinder 13 is fixed and connected to the flow limiting valve cylinder 28. The end of the flow limiting valve cylinder 28 away from the pump cylinder 13 has a port 50. The port 50 is connected to one end of the three-way connector 51. The other two ends of the three-way connector 51 are respectively connected to a one-way valve 52 and a one-way valve 53. The one-way valve 52 is connected to the conduit 27, and the conduction direction of the one-way valve 52 is... The second conduit 27 is connected to the self-cleaning mechanism 25 and its outlet end is connected to the liquid storage tank 16. The second check valve 53 is connected to the liquid storage tank 16 through the third conduit 54, and the conduction direction of the second check valve 53 points to the three-way connector 51. A valve plate 30 is hinged on the inner wall of the flow limiting valve cylinder 28, and the valve plate 30 blocks two-thirds of the flow section of the port 50. The valve plate 30 is connected to the inner wall of the flow limiting valve cylinder 28 through the first spring 29.

[0028] In this embodiment, the cleaning mechanism 25 includes reciprocating lead screws 31 symmetrically arranged on both sides of the unloading position of the flip plate 1. The reciprocating lead screws 31 are arranged perpendicularly to the hinge shaft 22. A matching sliding sleeve 33 is sleeved and slidably connected on the reciprocating lead screw 31. A movable seat 34 is fixed on the sliding sleeve 33. The two ends of the shaft 39 are respectively hinged in the two movable seats 34. The two ends of the shaft 39 are coaxially fixedly connected to gears 40. A shovel plate 38 for cleaning the surface of the flip plate 1 is fixed on the shaft 39. Pump wheels 32 corresponding to the reciprocating lead screws 31 are fixed on both sides of the unloading position of the flip plate 1. The impeller shaft of the pump wheel 32 is connected to the corresponding reciprocating lead screw 31 for transmission. The second guide tube 27 is fixed and communicates with the side wall of the pump wheel 32.

[0029] In this embodiment, a sliding groove 42 is provided on the movable base 34, and a rack 41 is slidably connected in the sliding groove 42. The rack 41 is meshed with the upper end of the corresponding gear 40. The end of the rack 41 is connected to one end of the sliding groove 42 through a second spring 43. A sliding cylinder 37 is fixed on the upper surface of the movable base 34, and a locking rod 46 is slidably connected inside the sliding cylinder 37. The upper end of the locking rod 46 is connected to the top of the sliding cylinder 37 through a third spring 48. An insertion hole 45 is provided on the side wall of the sliding cylinder 37. A wedge block 47 is fixed to the upper end of the locking rod 46, and the bottom of the wedge block 47 is a wedge-shaped surface facing the insertion hole. The upper surface of the movable seat 34 is provided with a slide 49 that communicates with the slide groove 42. The lower end of the locking rod 46 is inserted into and slidably connected in the slide 49. The lower end of the locking rod 46 is a wedge-shaped surface and faces the side of the transport vehicle. The rack 41 is provided with a buckle groove 44 that matches the lower end of the locking rod 46. The two ends of the reciprocating screw 31 are respectively provided with a stop rod 35 and a pin 36. The stop rod 35 and the pin 36 are both fixed on the side wall of the flip plate 1. The stop rod 35 is in abutting contact with the corresponding end of the rack 41. The pin 36 passes through the corresponding insertion hole 45 and is in abutting contact with the wedge-shaped surface of the wedge block 47.

[0030] Working principle and advantages of this invention: The hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry operates as follows: like Figures 1 to 8As shown, in the initial state, the locking block 20 and the toothed disc 23 are far apart and do not contact each other. The transport vehicle loaded with dead livestock and poultry is tilted onto the tipper 1 and stopped after the rear wheels are against the positioning baffle 10. This not only helps the driver to position the vehicle accurately, but also firmly limits the vehicle's tires to prevent slippage. Personnel get out of the vehicle and connect the steel cable 12 to the trailer hook at the front of the transport vehicle to form a double safety anchor, ensuring the stability of the vehicle during the tilting process and eliminating the risk of the vehicle slipping off the tipper 1. After completing the above operations, personnel move away from the tipper 1. The controller identifies and analyzes whether the pressure signal difference between the pressure sensors 26 on both sides of the bottom of the tipper 1 is within the safe range. If not, the regulating motor 7 is started, which drives the screw 6 to rotate and drives the screw sleeve 5 and the bearing plate 4 to move laterally until the pressure signal difference is within the safe range. This prevents the load on both sides of the tipper 1 from being severely uneven, which could cause the hydraulic cylinder on one side to overload and malfunction, leading to the vehicle tipping off. This further ensures the safety of the unloading operation.

[0031] After the aforementioned preparations are completed, the double-acting hydraulic cylinder 2 is activated by the controller to lift the flap 1 and the transport vehicle on it, causing it to flip around the hinge 22. When the flap 1 tilts to the set angle, the controller automatically triggers the rear door opening mechanism of the cargo compartment. The material slides down under gravity and directly enters the sealed storage bin below, avoiding contact with the external environment. After unloading, the controller controls the double-acting hydraulic cylinder 2 to retract and drive the flap 1 to reset. Then, the steel cable 12 is removed and the transport vehicle is driven away from the flap 1. The entire unloading process is safe and reliable, improving operational efficiency and epidemic prevention reliability, and providing safe and efficient technical support for the harmless treatment of dead animals.

[0032] As described above, during the upward unloading process of the flap 1, the flap 1 drives the piston plate 14 via the connecting rod 15 to apply a suction force to the pump cylinder 13. Since the conduction direction of the one-way valve 52 points to the conduit 27 and the conduction direction of the one-way valve 53 points to the three-way connector 51, the oil in the storage tank 16 enters the pump cylinder 13 through the conduit 34. The oil flow direction impacts the valve plate 30, causing the valve plate 30 to overcome the elasticity of the spring 29 and reduce the sealing area of ​​the port 50, thereby ensuring that the flap 1 rises smoothly. At this time, the suction force applies a pulling force to the piston plate 18 in the pump cylinder 17 through the conduit 21, thereby preventing the locking block 20 from approaching the gear plate 23. During the descent and reset process of plate 1, the flap 1 drives the piston plate 14 through the connecting rod 15 to apply a compressive force to the pump barrel 13. At this time, the oil in the pump barrel 13 flows out through the port 50 and enters the conduit 27. During this process, the impact force exerted by the oil on the valve plate 30 is the same as the component of the elastic force exerted by the spring 29 in the direction perpendicular to the valve plate 30. This causes the valve plate 30 to block two-thirds of the flow section of the port 50, limiting the flow rate. This allows the flap 1 to descend smoothly and safely. In the stable descent state, the compression force on the piston plate 18 cannot overcome the elastic force of the spring 55. Therefore, in the stable descent state of the flap 1, the locking block 20 will not engage with the toothed disc 23.

[0033] The oil in conduit 27 flows through pump wheel 32 and drives impeller shaft, then flows into reservoir 16, causing impeller shaft to drive reciprocating screw 31 to rotate. This causes reciprocating screw 31 to drive sliding sleeve 33 to reciprocate, which in turn causes moving seat 34 to move along with sliding sleeve 33. When moving seat 34 moves against stop lever 35 and rack 41 engages with stop lever 35, stop lever 35 applies a thrust to rack 41, causing rack 41 to compress spring 43. Simultaneously, rack 41 drives shaft 39 via gear 40. The shovel plate 38 rotates, causing its cutting edge to approach the surface of the flap 1. When the end of the rack 41 engages with the wedge-shaped surface of the lower end of the locking rod 46, the rack 41 drives the locking rod 46 upward and compresses the spring 38. When the sliding sleeve 33 moves in the opposite direction, the locking groove 44 aligns perfectly with the lower end of the locking rod 46. At this time, under the restoring force of the spring 38, the lower end of the locking rod 46 is inserted into the locking groove 44. Simultaneously, the sliding sleeve 33 moves in the opposite direction, and the cutting edge of the shovel plate 38 adheres to the surface of the flap 1. Due to the resistance of the locking rod 46... The spring 43 prevents the rack 41 from returning to its original position, thus ensuring that the scraper plate 38 can stably adhere to the surface of the flip plate 1. As the reciprocating screw 31 drives the sliding sleeve 33 to move towards the ejector pin 36, the moving seat 34 drives the scraper plate 38 to remove dirt adhering to the surface of the flip plate 1, preventing the accumulation and spread of pollution, reducing the labor intensity of cleaning personnel, and improving epidemic prevention safety. When the ejector pin 36 passes through the insertion hole 45 and abuts against the wedge-shaped surface of the wedge block 47, the ejector pin 36 drives the wedge block 47 to drive the locking rod. 46 moves upward and compresses the third spring 48, causing the lower end of the locking rod 46 to exit from the latch groove 44. When the sliding sleeve 33 reverses direction, the lower end of the locking rod 46 completely exits from the latch groove 44, releasing the restriction on the rack 41. Under the restoring force of the second spring 43, the rack 41 resets and drives the gear 40 to rotate in the opposite direction. This causes the gear 40 to drive the shaft 39 and the scraper plate 38 to rotate in the opposite direction, causing the scraper plate 38 to reset. This prevents the return scraper plate 38 from scraping residual dirt to the front end of the flip plate from the reverse side, achieving unidirectional scraping and cleaning, and ensuring the cleaning effect.

[0034] When a hydraulic line bursts or the cylinder leaks internally, causing the lifting force of the double-acting hydraulic cylinder 2 to suddenly disappear or drop sharply, the flap 1 descends rapidly under gravity. This causes a sharp increase in the compressive force within the pump cylinder 13 via the connecting rod 15 and piston plate 14. Due to the flow-limiting effect of the valve plate 30, the oil pressure within the pump cylinder 13 also increases sharply. This causes the oil pressure to push against the piston plate 18, overcoming the spring force of the spring 55, and driving the piston plate 18 to push the locking block via the push-pull rod 19. 20 approaches the gear plate 23 and quickly engages with the locking block 20 under the counterclockwise rotation trend of the gear plate 23, thereby locking the gear plate 23 and preventing it from continuing to descend. This ensures safety by quickly preventing the flap 1 from falling in the event of a sudden fall. Since the flap 1 is always rotating counterclockwise due to gravity, the locking block 20 is always engaged. Even if the pressure inside the pump cylinder 13 gradually disappears, the restoring force of the spring 4 55 will not cause the locking block 20 to be pulled out and away from the gear plate 23.

[0035] Even if the locking block 20 can be pulled out, as the flap 1 continues to fall, the oil pressure in the pump cylinder 13 will increase sharply again, causing the locking block 20 to engage with the gear plate 23 again, thus causing it to fall intermittently, dispersing the potential energy of the flap 1's fall, and gradually eliminating it, while still maintaining extremely high safety.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. A hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry, comprising a tipping plate (1) and a double-acting hydraulic cylinder (2), wherein a hinge shaft (22) is fixed at the bottom of the tipping plate (1), and the hinge shaft (22) is rotatably connected to a shaft frame (24) on a fixed axis, the shaft frame (24) is fixed on a base, and the double-acting hydraulic cylinder (2) is disposed in the base and its piston rod end is hinged to the bottom surface of the tipping plate (1), characterized in that: Also includes: The anti-fall mechanism installed on the base has the function of locking the hinge (22) when the flap (1) suddenly falls, so as to prevent the flap (1) from falling. The positioning baffle (10) and two anchors (11) are set on the flap (1). The positioning baffle is used to position and block the wheels of the transport vehicle. The anchors (11) are fixed on both sides of the flap (1) away from the hinge (22), and the anchors (11) are equipped with steel cables (12). After the transport vehicle stops, the steel cables (12) are connected to the trailer hook at the front of the transport vehicle.

2. The hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry according to claim 1, characterized in that: The upper surface of the flap (1) is provided with a groove (3), and the bottom surface of the groove (3) is rotatably connected to a screw (6). The screw (6) is arranged parallel to the hinge shaft (22). One end of the screw (6) is connected to the adjustment motor (7) fixed inside the groove (3). A bearing plate (4) is provided inside the groove (3), and a positioning baffle (10) is fixed on the bearing plate (4). A screw sleeve (5) is fixed on the bottom surface of the bearing plate (4). The screw sleeve (5) is sleeved and threadedly connected to the screw (6). Pressure sensors (26) are provided on the bottom surface of the flap (1) at both ends of the screw (6), and the adjustment motor (7) and the two pressure sensors (26) are electrically connected to the controller.

3. The hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry according to claim 2, characterized in that: The bottom surface of the groove (3) is fixed with a guide rail (9), and the guide rail (9) and the screw (6) are arranged parallel to each other. The bottom surface of the bearing plate (4) is fixed with a slider (8) that is compatible with the guide rail (9), and the slider (8) is slidably connected to the guide rail (9).

4. The hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry according to claim 1, characterized in that: The unloading tail of the flap (1) is provided with a cleaning mechanism (25), and during the reset process of the flap (1) after unloading, the anti-fall mechanism drives the cleaning mechanism (25) to clean the surface of the flap (1).

5. A hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry according to claim 4, characterized in that: The fall protection mechanism includes a pump cylinder one (13) hinged to the base and a pump cylinder two (17) fixed to the base. A piston plate one (14) is slidably connected inside the pump cylinder one (13), and a connecting rod (15) is fixedly connected to the piston plate one (14). The end of the connecting rod (15) away from the piston plate one (14) is hinged to the bottom surface of the flap (1). The lower end of the pump cylinder one (13) is connected to the pump cylinder two (17) through a conduit one (21). The pump cylinder (17) is connected to a piston plate (18) which is slidably connected inside. The piston plate (18) is connected to the inner wall of the pump cylinder (17) by a spring (55). The piston plate (18) is fixedly connected to a locking block (20) by a push-pull rod (19). The locking block (20) is located outside the pump cylinder (17). The end of the hinge shaft (22) is coaxially fixedly connected to a gear plate (23), and the locking block (20) and the gear plate (23) mesh accordingly.

6. A hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry according to claim 5, characterized in that: The fall protection mechanism also includes a liquid storage tank (16) fixed on the base. The lower side wall of the pump cylinder (13) is fixed and connected to the flow limiting valve cylinder (28). The flow limiting valve cylinder (28) has a port (50) at the end away from the pump cylinder (13). The port (50) is connected to one end of the three-way connector (51). The other two ends of the three-way connector (51) are connected to the one-way valve (52) and the one-way valve (53) respectively. The one-way valve (52) is connected to the conduit (27). The conduction direction of the one-way valve (52) is towards the conduit (27). The conduit (27) is connected to the self-cleaning mechanism (25) and its outlet end is connected to the liquid storage tank (16). The one-way valve (53) is connected to the liquid storage tank (16) through the conduit (3) and the conduction direction of the one-way valve (53) is towards the three-way connector (51).

7. A hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry according to claim 6, characterized in that: A valve plate (30) is hinged to the inner wall of the flow limiting valve cylinder (28), and the valve plate (30) blocks two-thirds of the flow section of the inlet (50). The valve plate (30) is connected to the inner wall of the flow limiting valve cylinder (28) by a spring (29).

8. A hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry according to claim 6, characterized in that: The cleaning mechanism (25) includes reciprocating screws (31) symmetrically arranged on both sides of the unloading position of the flip plate (1), and the reciprocating screws (31) and the hinge shaft (22) are arranged perpendicularly to each other. A matching sliding sleeve (33) is sleeved and slidably connected on the reciprocating screws (31), and a movable seat (34) is fixed on the sliding sleeve (33). The two ends of the shaft (39) are respectively hinged in the two movable seats (34), and the two ends of the shaft (39) are coaxially fixedly connected with gears (40). A shovel plate (38) for cleaning the surface of the flip plate (1) is fixed on the shaft (39).

9. A hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry according to claim 8, characterized in that: The flap (1) has pump wheels (32) fixed on both sides of the unloading position, corresponding to the reciprocating screw (31), and the impeller shaft of the pump wheel (32) is connected to the corresponding reciprocating screw (31) in a transmission connection. The second guide tube (27) is fixed and connected to the side wall of the pump wheel (32).

10. A hydraulic tipping safety unloading device for the harmless treatment of diseased and dead livestock and poultry according to claim 8, characterized in that: The movable seat (34) has a sliding groove (42), and a rack (41) is slidably connected in the sliding groove (42). The rack (41) is meshed with the upper end of the corresponding gear (40). The end of the rack (41) is connected to one end of the sliding groove (42) through a spring (43). A sliding cylinder (37) is fixed on the upper surface of the movable seat (34), and a locking rod (46) is slidably connected inside the sliding cylinder (37). The upper end of the locking rod (46) is connected to the top of the sliding cylinder (37) through a spring (48). An insertion hole (45) is opened on the side wall of the sliding cylinder (37). A wedge block (47) is fixed on the upper end of the locking rod (46), and the bottom of the wedge block (47) is a wedge-shaped surface facing the insertion hole. 45), the upper surface of the movable seat (34) is provided with a slide (49) that communicates with the slide groove (42), and the lower end of the locking rod (46) is inserted and slidably connected in the slide (49). The lower end of the locking rod (46) is a wedge-shaped surface and faces the transport vehicle side. The rack (41) is provided with a buckle groove (44) that matches the lower end of the locking rod (46). The two ends of the reciprocating screw (31) are respectively provided with a stop rod (35) and a pin (36). The stop rod (35) and the pin (36) are both fixed on the side wall of the flip plate (1). The stop rod (35) is in contact with the end of the corresponding rack (41). The pin (36) passes through the corresponding insertion hole (45) and is in contact with the wedge-shaped surface of the wedge block (47).

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